Reciprocating engine



Oct. 16, 1928. 1,687,744

F. M. WEBB RECIPROCAIING ENGINE Filed Dec. 23, 1925 Y 2 Shams-Sheet 1 INVENTOR vrromvarrv 73 26 I if AED .WEEB

Oct. 16, 1928. 1,687,744

F. M. WEBB RECIPROCATING ENGINE Filed Dec. 23, 1925 2 Gheets-Sheetl 2 I 6 //fi /7/7//////////// G/ d"? 3 I WVVENTOR F250 l7. WEBB Patented Oct. 16, 1928. v

' UNITED STATES PATENT OFFICE.

' FRED MAURICE WEBB, or FREsNo, CALIFORNIA. I I

RECIPBOCATING ENGINE.

Application filed December 23, 1925. Serial No. 77,190.

My invention relates to reciprocating engines of any type and the ebject thereof is to provide improved mechanism for transforming the recip rocatory "motion of the piston into a rotating motion whereby the power and efficiency is increased and at the same time the rotative speed of the driven member or shaft will be increased relative to the p ston speech Another object is to provide mechanismot theabove'character which will be simple in construction, effective in operation, and which can be substituted for the mechanism now in ing a part hereof:

Fig.1 is a side elevation-of so-much of an I explosion engine as is necessary to illustrate my invention. 7 I

Fig. 2 is a section'on the 11116 2-2 of Fig. 1.

. Fig. 3 is a section'on the line 3"-3 of Fig. 1.

I Fig. 4c is a side elevation of my device as adapted fora steamengine.

Fig. 5 is a section on the line 5-5 of F g. 4. Fig. 6 is aysection ontheline 6-6 of Fig. Referring to the drawings (Figs. 1 to 3 mclusive) my invention comprises a-driving member 8, substantially oval in shape on the inner periphery of which are provided gear teeth 9. The upper end of member Shas projecting therefrom an earflOto which is pivotally' connected the lower end of the piston ro'dll. Rodll is connected to the piston 12 rigidly or by a wrist pin (not shown) in theusual well known manner. Ear may also-be omitted if desired and the connecting or pr;- 0 ton rod, piston and driving member 8 formed integrally. Extending inwardly towards each other from the sidewalls of the crank case 13 of the. engine are partition walls 14; and 15 and in these walls; in opposed relation are provided grooves 16 and 17 in which member 8 is slidably mounted to slide'vertically. Extending outwardly. from opposite side of partitions 14 and 15 are brackets 19 and 20 and in these brackets are provided guideways 21 and 22 in which are slidably mounted the shaft bearings 23' and-24, in

I have shown and will.

which bearings is revolubly mounted the drivon shaft 25. 'Projecting from one side of the bearings 23 and 24 are arms 26 and 27 upon the free ends of which are secured the cam shaft bearings 28 and 29. Bearings 28 and 29 are slidably supported inguidejways 30 and 31 provided in'brackets 19 and 20 in alinement with the guideways 21 and 22. Rigidly mounted upon cam shaft 32 are cams-33 and 34 the faces of which bearlagainst the sides of the recesses 35 and 36 provided in brackets 19 and 20 so that as cam shaft 32 is rotated said cams will act to reciprocate bearings 24 and 23, and bearings 28 and 29, with their respective shafts in a horizontal plane.

Mounted upon each'end of shaft 25 are unis versal or flexible joints 37: which are in turn connected to the power shaftf 38,in the case of a single cylinder engine, but in the case of a multiple cylinder en'ginethe shafts 25 will be interconnected similarly. Rigidly mounted upon shaft 32 at one. end thereof'is a sprocket wheel 40 and a similar wheel 41 is rigidly mounted upon the'driven shaft 25, a chain 42 passing around these sprocket wheels 7 provides means for rotating said shafts 32 and 25 in unison. Extending downwardly from the lower end of 'memberSis a stem 43 s the lower end of which terminatesinfa head 44, and mounted upon the bottom wall 45 of the oil pan 46 is an oil'cup 47 into which head 44 I is adapted to plunge during the reciprocation of member 8. 'Holes' 48 are provided in the.

lower portion of the outer wall 'ofcup throughwhichthe oilenters said cup, check valves (not shown) being provided if desired and as member 8 reciprocates downwardly head 44 will be projected into said cup, and

due to the fact that the saidhead is'some this form of my device,-

What smaller in diameter than the cup, will v force the'oil out of said cup past said head and spray the same upwardly thereby lubrithe teeth of gear 45, rigidly mounted upon shaft 25 rotating the same in a clockwise direction. At the same time rotation will be imparted'to cam shaft 32 the rotationof whichwill rotate cams 33 and 34. Cams 33 and 34 are so designed as to harmonize with the interior configuration of member 8 and to reciprocate shaft 25 so as to keep the teeth 9 and the teeth of gear 45 inoperative engagement at all times and as member 8 approaches H the end of its, stroke in either direction the shaft will be reciprocated to follow the curve at the ends thereof.

Referring to Figs. 4,5 and 6 my driving member is similar in shape to member 8 and is positioned to reciprocate horizontally.

tion of the guide pins 61 and 62 projecting from opposite sides of the driving member supporting frame {13;}. Formed in the op po'ed faces of the driving member supportframe are guideways 64 and 65 and in these guideways is mounted the driving member 50 slidable horizontally.

Extending downwardly and inwardly from each end of member .63. are substantially L -shaped brackets 66and 67 and provided in the walls of frame 68 at each end and near the bottom thereof are bearings 68 and 69 and in these bearings are revolubly mounted the cam shafts 70 and 71 upon which are rigidly mounted the cams 72 and 7 3. Cams 72 and73 are so mounted upon shafts 70 and V 71 as bear against the lower face of supporting frame 63 and the upper faces of brackets 66 and 67 so that as said cams arerotated frame 63 will be reciprocated vertically. Provided in the side walls of frame 58 about centrally'thereof are bearings 74: and 7 5 in which bearings is rotatably mounted the driven shaft 76. A gear 77 is rigidly mouned upon shaft 76 and is adapted for operative engagement with the teeth 7 9 of driving member 50. Rigidly mounted upon shaft 76 at theside of gear 77 is a sprocket wheel 80 and similar wheels S1 and 82 are rigidly mounted upon the cam shafts 70 and 71, a chain 83 passing around these sprocket wheels serving to rotate the same in unison.

In the operation of this form as the member 50 is reciprocated by the reciprocation of the piston 84 it will, through the operative engagement of the teeth 7 9 with the teeth of, gear 77, rotate shaft 76. The rotation of shaft 75 will in turn rotate cam shafts 7 O and 71 causing thecams 7 2 and 73 to alternately raise and lower supporting frame 63, it being understood that these cams are so designed and arranged as to always maintain the 0p erative engagement between teeth 79 and the teeth of gear 77. Any suitable lubricatingi'nechanism may be employed with-this form of my device.

Having described my invention what I claim is: v I

1. The combination with a reciprocating engine, of an elongated endless rack secured to the engine piston, pinion on the power shaft in engagement with said rack, a stationary frame, a movableframemounted in said stationary frame to move vertically, guidoways carried by said movable frame for supporting said rack, said rack being slidable in said frame, a 'slnzft mounted in said stationary frame at each'end thereof beneath said movable frame, a cam mounted on each of said shafts adapted to bear against the underside of SELlCl'lIlOVilblG frame to raise and lower the same, and operative connections be-' tween said last shafts and said power shaft adapted to rotate the same synchronously.

2. The combination with a reciprocating engine of an elongated endless rack secured to the engine piston, a pinion on the power shaft engageable withthe rack, a vertically movable frame in'which said rack is slid-ably mounted, and means operated by said power shaft adapted to raise andlower said movable frame to hold the pinion and "rack in engagement andto shift the rack toengage opposite sides of the pinion at the end-of the stroke. t I

3. The combination with 'arecipi ocating engine of an elongated endless'rack secured to. the engine piston, a pinion on the power shaft in operative engagement with saidrack, a vertically movable frame in which said rack is slidably mounted, a pair of cam shafts mounted beneath said movableframe, one at eachend thereof parallel with said power shaft, a cam track at each end of said movable frame through which said cam shaft passes,

a cam on each of saidxcam shafts adapted to maintain operative engagement between said rack and pinion toefl'ect continuous motion of the pinion in the same direction and an operativeconnection between said power and cam shafts whereby said shafts are caused to rotate in unison. p

In witness that I claim the'fo regoing I have hereunto subscribed my name this 28th day of November 1925.

FRED MAURICE when. 

